update matplotlib to 1.0.0 and clean out the patches

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/9221">trac #9221</a>.



Reported by: jason

Component: graphics

CC: drkirkby,, kcrisman

Report Upstream: Fixed upstream, but not in a stable release.

Authors: Jason Grout

Dependencies: 

Work issues: 

Reviewers: David Kirkby, Karl-Dieter Crisman

Merged in: sage-4.6.alpha3

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/9221/trac-9221-matplotlib-update.patch">trac-9221-matplotlib-update.patch: </a> by jason at 20100814T15:57:06</li></ol>